All of the names were from Roman emperors. The correct answer that Captain James T Kirks middle name was Tiberius after the Roman Empreror who reigned from 14 – 37 AD. The name James T Kirk was actually inspired by Captain James Cook The character was also based on C. S. Forester's Jack Lord the star of Hawaii 50 was the original choice to play Kirk, but his demand for fifty-percent ownership of the show led to him being rejected.